Abdullah bin Ubayd bin Umayr al-Laythi narrates from his father that he asked the Mother of the Believers, Sayyidah Aishah (may Allah be pleased with her): O Mother of the Believers! How did the Messenger of Allah (peace and blessings be upon him) recite this word: "And those who give what they give"? She said: "I bear witness that I heard the Messenger of Allah (peace and blessings be upon him) recite it as "ya'tuna" (with ya)." [Surah al-Mu'minun: 60] This hadith has an authentic (sahih) chain of narration, but the two Shaykhs (Bukhari and Muslim) did not record it.