Muhammad or `Abdullah bin Abu Al-Mujalid said, "Abdullah bin Shaddad and Abu Burda differed
regarding As-Salam, so they sent me to Ibn Abi `Aufa and I asked him about it. He replied, 'In the
lifetime of Allah's Messenger (ﷺ), Abu Bakr and `Umar, we used to pay in advance the prices of wheat,
barley, dried grapes and dates to be delivered later. I also asked Ibn Abza and he, too, replied as
above.' "
Sahih al-Bukhari Book 35, Hadith 6
Malik related to me from Abdullah ibn Abi Bakr from his father
that the Messenger of Allah, may Allah bless him and grant him peace,
said, "If a man sneezes, invoke a blessing on him. Then if he sneezes,
invoke a blessing on him. Then if he sneezes, invoke a blessing on
him. Then if he sneezes, say, 'You have a cold'." Abdullah ibn Abi
Bakr said, "I don't know whether it was after the third or fourth."
Muwatta Malik Book 54, Hadith 4