وَحَدَّثَنِي عَنْ مَالِكٍ، عَنْ نَافِعٍ، أَنَّ عَبْدَ اللَّهِ بْنَ عُمَرَ، كَانَ يُصَلِّي الْمَغْرِبَ وَالْعِشَاءَ بِالْمُزْدَلِفَةِ جَمِيعًا ‏.‏

Yahya related to me from Malik from Nafi that Abdullah ibn Umarused to pray maghrib and isha together at Muzdalifa. Translation Not Available

Book Ref: Muwatta Imam Malik Book 20 Hadith 907
Web Ref:  Muwatta Imam Malik Book 20 Hadith 208