Muwaththa' Malik · #1406
قَالَ يَحْيَى قَالَ مَالِكٌ عَنْ جَعْفَرِ بْنِ مُحَمَّدٍ، عَنْ أَبِيهِ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَضَى بِالْيَمِينِ مَعَ الشَّاهِدِ .
English
Yahya said, "Malik said from Jafar ibn Muhammad from his father that the Messenger of Allah, may Allah bless him and grant him peace, pronounced judgement on the basis of an oath with one witness