Muwatta Malik· موطأ مالك
Muwatta Malik 352
I have heard from Nafi that Abdullah ibn Umar used to see his son, Ubaydullah…
মুয়াত্তা ইমাম মালিক ৩৫২ · মুয়াত্তা মালিক•Shortening the Prayer
وَحَدَّثَنِي عَنْ مَالِكٍ، قَالَ بَلَغَنِي عَنْ نَافِعٍ، أَنَّ عَبْدَ اللَّهِ بْنَ عُمَرَ، كَانَ يَرَى ابْنَهُ عُبَيْدَ اللَّهِ بْنَ عَبْدِ اللَّهِ يَتَنَفَّلُ فِي السَّفَرِ فَلاَ يُنْكِرُ عَلَيْهِ .
Narrator: Yahya
Yahya related to me that Malik said, "I have heard from Nafi that Abdullah ibn Umar used to see his son, Ubaydullah ibn Abdullah, doing voluntary prayers on a journey,and he would not disapprove of it- Salim al-HilaliMauquf Daif