(Imām Bukhārī narrates): Abū al-Nu'mān narrated to us, he said: Mu'tamir narrated to us, from his father, from Bakr, from Abū Rāfi', he narrated that:
I prayed the 'Ishā' prayer with Abū Hurairah, may Allāh be pleased with him, so he recited this verse: "When the sky is split asunder." (Al-Inshiqāq: ). So he performed sajdah. I asked him the reason, so he said: I performed sajdah behind Abū al-Qāsim ﷺ on this verse, so I will always perform sajdah on this verse, until I meet him.
حَدَّثَنَا أَبُو النُّعْمَانِ، قَالَ حَدَّثَنَا مُعْتَمِرٌ، عَنْ أَبِيهِ، عَنْ بَكْرٍ، عَنْ أَبِي رَافِعٍ، قَالَ صَلَّيْتُ مَعَ أَبِي هُرَيْرَةَ الْعَتَمَةَ فَقَرَأَ {إِذَا السَّمَاءُ انْشَقَّتْ} فَسَجَدَ فَقُلْتُ لَهُ قَالَ سَجَدْتُ خَلْفَ أَبِي الْقَاسِمِ صلى الله عليه وسلم فَلاَ أَزَالُ أَسْجُدُ بِهَا حَتَّى أَلْقَاهُ.
Reference: Sahih Al Bukhari 766