Muwatta Malik 275
موطأ مالك#275SahihThese are the words of a Companion, not of the Prophet ﷺ. The chain is graded on its own terms.
وَحَدَّثَنِي عَنْ مَالِكٍ، عَنْ عَبْدِ اللَّهِ بْنِ دِينَارٍ، أَنَّ عَبْدَ اللَّهِ بْنَ عُمَرَ، كَانَ يَقُولُ صَلاَةُالمغرب وتر صلاة النهار . قال مالك من أوتر أول الليل ثم نام ثم قام فبدا له أن يصلي فليصل مثنى مثنى فهو أحب ما سمعت إلى
Yahya related to me from Malik from Abdullah ibn Dinar that Abdullah ibn Umar used to say, "The maghrib prayer is the witr of the daytime prayers." Malik said, "If someone prays witr at the beginning of the night, and goes to sleep, and then wakes up and it seems good to him to pray, let him pray, two rakas at a time. That is what I like most of what I have heard
Scholarly Authentication
The label above is the grade most of these scholars gave — one dissenting opinion no longer speaks for all of them. If any scholar calls a narration fabricated, that verdict is shown instead, whatever the others say. Each scholar's own wording:
In-book reference: 7:22