(35) باب الصَّلاَةِ قَبْلَ الْمَغْرِبِ
Narrated Marthad bin `Abdullah Al-Yazani:
I went to `Uqba bin 'Amir Al-Juhani and said, "Is it not surprising that Abi Tamim offers two rak`at before the Maghrib prayer?" `Uqba said, "We used to do so in the lifetime of Allah's Messenger (ﷺ)." I asked him, "What prevents you from offering it now?" He replied, "Business."
Reference: Sahih al-Bukhari 1184
In-book reference: Book 19, Hadith 61
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 2, Book 21, Hadith 278