Mishkat al-Masabih
Mishkat al-Masabih 1353
Arabic hadith text
وَعَنْ نَافِعٍ قَالَ: إِنَّ عَبْدَ اللَّهِ بْنَ عُمَرَ كَانَ يَرَى ابْنَهُ عُبَيْدَ اللَّهِ يَتَنَفَّلُ فِي السَّفَرِ فَلَا يُنْكِرُ عَلَيْهِ. رَوَاهُ مَالِكٌ
Translation
Unreviewed translation. All hadiths in this collection are available in five languages. Titles and introductions may remain in Arabic.
Nafi reported that Abdullah ibn Umar would see his son Ubaydullah offering voluntary prayers while travelling and would not object. Malik transmitted it.