Mu'jam Kabir Tabarani 11476 — when the Prophet ﷺ wished to mount

It is narrated from Sayyiduna Ibn Abbas (may Allah be pleased with them both) that when the Prophet (peace and blessings be upon him) wished to mount before the sun passed its zenith, he would mount and delay Zuhr until he combined it with Asr; and when he wished to mount after the sun had passed its zenith, he would combine Zuhr and Asr before mounting; and when he wished to mount at the time of Maghrib, he would pray Maghrib and Isha before mounting; and when he wished to mount before the time of Maghrib, he would delay Maghrib and combine it with Isha.