It wasnarrated that 'Atiyyah bin Sufyan bin 'Abdullah bin Rabi'ahsaid:
"Our delegation who went to the Messenger of Allah (ﷺ) toannounce the Islam of Thaqif told us that they came to him inRamadan.He set up a tent for them in the mosque, and when theybecame Muslim,they fasted what was left of the month." (FR)
English reference (FR): Vol. 1, Book 7, Hadith 1760 (FR)
Arabic reference (FR): Book 7, Hadith 1832 (FR)