Sayyiduna Abdullah bin Mughaffal رضي الله عنه narrates from the Noble Prophet صلى الله عليه وسلم that he صلى الله عليه وسلم said: "There is prayer between every two calls to prayer. There is (nafl) prayer between every two calls to prayer (adhan and iqamah)." Then, the third time he said: "Whoever wishes to pray, (let him pray)." This is the hadith of Abu Kuraib and Ahmad bin Abda. Abu Kuraib has narrated these additional words that therefore Abdullah bin Buraidah used to pray two rak'ahs before Maghrib prayer.