عَنْ جَابِرِ بْنِ سَمُرَةَ رَضِيَ اللَّهُ عَنْهُ قَالَ: كَانَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ يُصَلِّي الظُّهْرَ إِذَا دَحَضَتِ الشَّمْسُ (وَفِي رِوَايَةٍ: كَانَ بِلَالٌ يُؤَذِّنُ إِذَا دَحَضَتِ الشَّمْسُ)
It is narrated from Sayyiduna Jabir bin Samurah (may Allah be pleased with him), he states that the Messenger of Allah (peace and blessings be upon him and his family) would perform the Zuhr prayer when the sun had declined. In another narration: Sayyiduna Bilal (may Allah be pleased with him) would give the call to prayer when the sun had declined.