Al-Bara' (RA) reported that the last verse revealed in the Holy Qur'an is: "They ask thee for a religious verdict; say: Allah gives you a religious verdict about Kalala (the person who has neither parents nor children)" (iv 177).
Abu Ishaq said that he heard al-Bara' bin 'Azib (RA) say: The last verse revealed (in the Holy Quran) is that pertaining to Kalala, and the last sura revealed is Sura al-Bara'at.
Abu Ishaq said that he heard al-Bara' bin 'Azib (RA) say: The last complete sura revealed (in the Holy Qur'an) is Sura Tauba (i e. al-Bara'at, ix.), and the last verse revealed is that pertaining to Kalala.