(Imām Bukhārī narrates): Abū al-Nu'mān narrated to us, he said: Hammād narrated to us, from Ayyūb, from Abī Qilābah, that Mālik ibn al-Huwairith said to his companions:
Shall I not inform you of the manner of the prayer of the Messenger of Allāh ﷺ? — and at that time it was not the time of any prayer. Then he stood, then performed rukū', then said "Allāhu Akbar," then raised his head, then remained standing for a little while, then performed sajdah, then raised his head, remained (sitting) for a little while, then he prayed just like this elder of ours, 'Amr ibn Salamah, may Allāh be pleased with him. Ayyūb said: He did an action which I had not seen anyone else doing: he used to sit in the third and fourth rak'ah.
حَدَّثَنَا أَبُو النُّعْمَانِ، قَالَ حَدَّثَنَا حَمَّادٌ، عَنْ أَيُّوبَ، عَنْ أَبِي قِلاَبَةَ، أَنَّ مَالِكَ بْنَ الْحُوَيْرِثِ، قَالَ لأَصْحَابِهِ أَلاَ أُنَبِّئُكُمْ صَلاَةَ رَسُولِ اللَّهِ صلى الله عليه وسلم قَالَ وَذَاكَ فِي غَيْرِ حِينِ صَلاَةٍ، فَقَامَ، ثُمَّ رَكَعَ فَكَبَّرَ ثُمَّ رَفَعَ رَأْسَهُ، فَقَامَ هُنَيَّةً، ثُمَّ سَجَدَ ثُمَّ رَفَعَ رَأْسَهُ هُنَيَّةً، فَصَلَّى صَلاَةَ عَمْرِو بْنِ سَلِمَةَ شَيْخِنَا هَذَا. قَالَ أَيُّوبُ كَانَ يَفْعَلُ شَيْئًا لَمْ أَرَهُمْ يَفْعَلُونَهُ، كَانَ يَقْعُدُ فِي الثَّالِثَةِ وَالرَّابِعَةِ. قَالَ فَأَتَيْنَا النَّبِيَّ صلى الله عليه وسلم فَأَقَمْنَا عِنْدَهُ فَقَالَ " لَوْ رَجَعْتُمْ إِلَى أَهْلِيكُمْ صَلُّوا صَلاَةَ كَذَا فِي حِينِ كَذَا، صَلُّوا صَلاَةَ كَذَا فِي حِينِ كَذَا، فَإِذَا حَضَرَتِ الصَّلاَةُ فَلْيُؤَذِّنْ أَحَدُكُمْ وَلْيَؤُمَّكُمْ أَكْبَرُكُمْ "
Reference: Sahih Al Bukhari 818