مُوَطَّأُ مَالِكٍ
Muwatta Malik 407
Shortening the Prayer
وَحَدَّثَنِي عَنْ مَالِكٍ، عَنْ هِشَامِ بْنِ عُرْوَةَ، عَنْ أَبِيهِ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ اجْعَلُوا مِنْ صَلاَتِكُمْ فِي بُيُوتِكُمْ .
Yahya related to me from Malik from Hisham ibn Urwa from his father that the Messenger of Allah, (ﷺ), said, "Do some of the prayers in your houses."
Arabic/English book reference: Book 9, Hadith 76