Muwatta MalikChapter 9Hadith 330
Full Sharh — Muwatta Malik 330
Mauquf Sahih
وَحَدَّثَنِي عَنْ مَالِكٍ، عَنْ نَافِعٍ، أَنَّ عَبْدَ اللَّهِ بْنَ عُمَرَ، كَانَ إِذَا جَمَعَ الأُمَرَاءُ بَيْنَ الْمَغْرِبِ وَالْعِشَاءِ فِي الْمَطَرِ جَمَعَ مَعَهُمْ .
English Translation
(with regards to above) Malik said, "I believe that was during rain." Yahya related to me from Malik from Nafi that Abdullah ibn Umar used to join the prayer along with the amirs if they joined maghrib and isha in the rain
Source
Muwatta Malik(موطأ مالك)
Shortening the Prayer
Hadith Number
330
Grade
Mauquf Sahih