Muwatta Malik · Hadith 439

حَدَّثَنِي يَحْيَى، عَنْ مَالِكٍ، عَنْ عَبْدِ الرَّحْمَنِ بْنِ الْقَاسِمِ، أَنَّ أَبَاهُ الْقَاسِمَ، كَانَ يُصَلِّي قَبْلَ أَنْ يَغْدُوَ، إِلَى الْمُصَلَّى أَرْبَعَ رَكَعَاتٍ ‏.‏

Yahya related to me from Malik from Abd ar-Rahman ibn al-Qasim that his father used to pray four rakas before he went to the place of prayer

Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).