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

Yahya related to me from Malik from Nafi that Abdullah ibn Umarused to say, "Duluk ash-shams begins from when the sun passes themeridian." Translation Not Available

Book Ref: Muwatta Imam Malik Book 1 Hadith 19
Web Ref:  Muwatta Imam Malik Book 1 Hadith 19