Muwatta Imam Malik Book of Prayer in Congregation, Hadith 33
Yahya related to me from Malik that he had heard that Jabir ibn Abdullah used to pray in one garment.
وَحَدَّثَنِي عَنْ مَالِكٍ، أَنَّهُ بَلَغَهُ أَنَّ جَابِرَ بْنَ عَبْدِ اللَّهِ، كَانَ يُصَلِّي فِي الثَّوْبِ الْوَاحِدِ .