diff --git a/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/message/MessageSourceFromMsg.kt b/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/message/MessageSourceFromMsg.kt
index f966bc71b..540186716 100644
--- a/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/message/MessageSourceFromMsg.kt
+++ b/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/message/MessageSourceFromMsg.kt
@@ -10,7 +10,6 @@
 package net.mamoe.mirai.qqandroid.message
 
 import net.mamoe.mirai.contact.Group
-import net.mamoe.mirai.message.data.MessageChain
 import net.mamoe.mirai.message.data.MessageSource
 import net.mamoe.mirai.qqandroid.io.serialization.loadAs
 import net.mamoe.mirai.qqandroid.io.serialization.toByteArray
@@ -29,7 +28,7 @@ internal inline class MessageSourceFromServer(
     }
 
     override val messageUid: Long get() = delegate.pbReserve.loadAs(SourceMsg.ResvAttr.serializer()).origUids!!
-    override val sourceMessage: MessageChain get() = delegate.toMessageChain()
+    // override val sourceMessage: MessageChain get() = delegate.toMessageChain()
     override val senderId: Long get() = delegate.senderUin
     override val groupId: Long get() = Group.calculateGroupCodeByGroupUin(delegate.toUin)
 
@@ -46,7 +45,7 @@ internal inline class MessageSourceFromMsg(
     }
 
     override val messageUid: Long get() = delegate.msgBody.richText.attr!!.random.toLong()
-    override val sourceMessage: MessageChain get() = delegate.toMessageChain()
+    // override val sourceMessage: MessageChain get() = delegate.toMessageChain()
     override val senderId: Long get() = delegate.msgHead.fromUin
     override val groupId: Long get() = delegate.msgHead.groupInfo!!.groupCode
 
diff --git a/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/packet/chat/receive/MessageSvc.kt b/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/packet/chat/receive/MessageSvc.kt
index 9d415b113..94e37d2fa 100644
--- a/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/packet/chat/receive/MessageSvc.kt
+++ b/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/packet/chat/receive/MessageSvc.kt
@@ -275,10 +275,10 @@ internal class MessageSvc {
             override val messageUid: Long,
             override val time: Long,
             override val senderId: Long,
-            override val groupId: Long,
-            override val sourceMessage: MessageChain
+            override val groupId: Long// ,
+            // override val sourceMessage: MessageChain
         ) : MessageSource {
-            lateinit var sequenceIdDeferred: Deferred<Int>
+            private lateinit var sequenceIdDeferred: Deferred<Int>
 
             @UseExperimental(MiraiExperimentalAPI::class)
             fun startWaitingSequenceId(contact: Contact) {
@@ -317,8 +317,8 @@ internal class MessageSvc {
                 messageUid = Random.nextInt().absoluteValue.toLong() and 0xffffffff,
                 senderId = client.uin,
                 time = currentTimeSeconds + client.timeDifference,
-                groupId = 0,
-                sourceMessage = message
+                groupId = 0//
+                //   sourceMessage = message
             )
             message.addOrRemove(source)
 
@@ -354,8 +354,8 @@ internal class MessageSvc {
                 messageUid = Random.nextInt().absoluteValue.toLong(),
                 senderId = client.uin,
                 time = currentTimeSeconds + client.timeDifference,
-                groupId = groupCode,
-                sourceMessage = message
+                groupId = groupCode//,
+                //   sourceMessage = message
             )
 
             ///writeFully("0A 08 0A 06 08 89 FC A6 8C 0B 12 06 08 01 10 00 18 00 1A 1F 0A 1D 12 08 0A 06 0A 04 F0 9F 92 A9 12 11 AA 02 0E 88 01 00 9A 01 08 78 00 F8 01 00 C8 02 00 20 9B 7A 28 F4 CA 9B B8 03 32 34 08 92 C2 C4 F1 05 10 92 C2 C4 F1 05 18 E6 ED B9 C3 02 20 89 FE BE A4 06 28 89 84 F9 A2 06 48 DE 8C EA E5 0E 58 D9 BD BB A0 09 60 1D 68 92 C2 C4 F1 05 70 00 40 01".hexToBytes())
diff --git a/mirai-core/src/commonMain/kotlin/net.mamoe.mirai/message/data/MessageSource.kt b/mirai-core/src/commonMain/kotlin/net.mamoe.mirai/message/data/MessageSource.kt
index e0b7239dc..467802330 100644
--- a/mirai-core/src/commonMain/kotlin/net.mamoe.mirai/message/data/MessageSource.kt
+++ b/mirai-core/src/commonMain/kotlin/net.mamoe.mirai/message/data/MessageSource.kt
@@ -58,11 +58,6 @@ interface MessageSource : Message {
      */
     val groupId: Long
 
-    /**
-     * 原消息内容
-     */
-    val sourceMessage: MessageChain
-
     /**
      * 固定返回空字符串 ("")
      */