Nahj al-Balāgha

Hadith 1465
congregational-prayerfastingumrah
وَصَلُّوا بِهِمُ الْمَغْرِبَ حِينَ يُفْطِرُ الصَّائِمُ، وَيَدْفَعُ الْحَاجُّ إِلَى مِنًى.
Say the maghrib (sunset) prayers when he who is fasting ends the fast and the pilgrim rushes (from ‘Arafat) to Minā.
Source: al-Sharīf al-Raḍī