حَدَّثَنِي يَحْيَى، عَنْ مَالِكٍ، عَنْ عَبْدِ اللَّهِ بْنِ يَزِيدَ، مَوْلَى الأَسْوَدِ بْنِ سُفْيَانَ عَنْ أَبِي سَلَمَةَ بْنِ عَبْدِ الرَّحْمَنِ، أَنَّ أَبَا هُرَيْرَةَ، قَرَأَ لَهُمْ ‏{‏إِذَا السَّمَاءُ انْشَقَّتْ‏}‏ فَسَجَدَ فِيهَا فَلَمَّا انْصَرَفَ أَخْبَرَهُمْ أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم سَجَدَ فِيهَا ‏.‏

Yahya related to me from Malik from Abdullah ibn Yazid, the mawlaof al Aswad ibn Sufyan, from Abu Salama ibn Abd ar Rahman that AbuHurayra recited al-Inshiqaq (Sura 84) to them and prostrated in it.When he had finished he told them that the Messenger of Allah, mayAllah bless him and grant him peace, had prostrated in it. Translation Not Available

Book Ref: Muwatta Imam Malik Book 15 Hadith 484
Web Ref:  Muwatta Imam Malik Book 15 Hadith 12