Sahih Muslim , Book 6, Hadith 352 (In-Book) ⓘ
Ibn 'Umar reported Allah's Messenger as saying: Let not any one of you intend to observe prayer at the time of the rising of the sun or of the setting sun.
حَدَّثَنَا يَحْيَى بْنُ يَحْيَى، قَالَ قَرَأْتُ عَلَى مَالِكٍ عَنْ نَافِعٍ، عَنِ ابْنِ عُمَرَ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ " لاَ يَتَحَرَّى أَحَدُكُمْ فَيُصَلِّي عِنْدَ طُلُوعِ الشَّمْسِ وَلاَ عِنْدَ غُرُوبِهَا " .
also referenced under: Hadith 828 (Reference) & Book 4, Hadith 1806 (USC-MSA)