Muwatta Malik 19

Arabic

حَدَّثَنِي يَحْيَى، عَنْ مَالِكٍ، عَنْ نَافِعٍ، أَنَّ عَبْدَ اللَّهِ بْنَ عُمَرَ، كَانَ يَقُولُ دُلُوكُ الشَّمْسِ مَيْلُهَا ‏.‏

Translation

Yahya related to me from Malik from Nafi that Abdullah ibn Umar used to say, "Duluk ash-shams begins from when the sun passes the meridian

Authenticity

Sahih · Salim al-Hilali

Reference