Departing from 'Arafat to Al-Muzdalifah. It is recommended to pray Maghrib and 'Isha together in Al-Muzdalifah on this night Sahih Muslim 1280 c
Arabic hadith text
وَحَدَّثَنَا مُحَمَّدُ بْنُ رُمْحٍ، أَخْبَرَنَا اللَّيْثُ، عَنْ يَحْيَى بْنِ سَعِيدٍ، عَنْ مُوسَى بْنِ عُقْبَةَ، مَوْلَى الزُّبَيْرِ عَنْ كُرَيْبٍ، مَوْلَى ابْنِ عَبَّاسٍ عَنْ أُسَامَةَ بْنِ زَيْدٍ، قَالَانْصَرَفَ رَسُولُ اللَّهِ صلى الله عليه وسلم بَعْدَ الدَّفْعَةِ مِنْ عَرَفَاتٍ إِلَى بَعْضِ تِلْكَ الشِّعَابِ لِحَاجَتِهِ فَصَبَبْتُ عَلَيْهِ مِنَ الْمَاءِ فَقُلْتُ أَتُصَلِّي فَقَالَ " الْمُصَلَّى أَمَامَكَ "
Translation
Usama b. Zaid (Allah be pleased with him) reported
Allah's Messenger (ﷺ) on his way back from 'Arafat got down in one of these creeks (to answer the call of nature), and after he had done that I poured water (over his hands) and said: Are you going to pray? Thereupon he said: The place of prayer is ahead of you.