1506 - Abu Abd Allah narrated to us, he said: Al-Hasan ibn Musa narrated to us, he said: Hammad ibn Salamah narrated to us, from Habib ibn al-Shahid, from al-Hasan, who said: "How can these people think that some deeds do not invalidate other deeds, while Allah, the Mighty and Majestic, says: {Do not raise your voices above the voice of the Prophet} [al-Hujurat: 2] up to His saying: {Lest your deeds become invalidated while you do not perceive} [al-Hujurat: 2]."