Mishkat al-Masabih 19 Jihad كتاب الجهاد 145

عَن النُّعْمَان بن مقرن قَالَ: شَهِدْتُ مَعَ رَسُولِ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ فَكَانَ إِذَا لَمْ يُقَاتِلْ أَوَّلَ النَّهَارِ انْتَظَرَ حَتَّى تَزُولَ الشَّمْسُ وَتَهُبَّ الرِّيَاحُ وينزِلَ النَّصرُ. رَوَاهُ أَبُو دَاوُد

An-Nu‘man b. Muqarrin said he was present at fighting along with God’s Messenger, and when he did not fight at the beginning of the day he waited till the sun had passed the meridian, the winds blew and help came down. Abu Dawud transmitted it.