Hadith 8:132
'Abdullah bin Mughaffal (May Allah be pleased with him) reported:
The Prophet (ﷺ) said, "Perform two Rak'ah before Maghrib prayer." He (ﷺ) repeated it twice; when repeating it for the third time he added: "He who may so wish." [Al- Bukhari] .
وعن عبد الله بن مغفل، رضي الله عنه عن النبي صلى الله عليه وسلم قال: "صلوا قبل المغرب" قال في الثالثة: "لمن شاء" ((رواه البخاري))