That the Prophet (ﷺ) said (to her). "Order Abu Bakr to lead the people in prayer." She replied," Abu Bakr is a soft-hearted person and when he stands at your place, he will weep (so he will not be able to lead the prayer)." The Prophet (ﷺ) repeated the same order and she gave the same reply. The narrator, Shuba said that the Prophet (ﷺ) said on the third or fourth time. "You are (like) the female companions of Joseph. Order Abu Bakr to lead the prayer. "
Sahih al-Bukhari Book 60, Hadith 58
← Previous Hadith Allah's Messenger (ﷺ) was asked, "Who is the most honorable amongst the people?" He replied, "The most Allah fearing." The people said, "We do not want to ask you about this." He said, "The most honorable person is Joseph, Allah's Prophet, the son of Allah's Prophet, the son of Allah's Prophet, the son of Allah's Khalil" The people said, 'We do not want to ask you about this." He said," Then you want to ask me about the origins of the Arabs? People are of various origins. The best in the prelslamic period are the best in Islam, provided they comprehend (the religious knowledge).

Sahih al-Bukhari Book 60, Hadith 57 Next Hadith → When the Prophet (ﷺ) fell ill, he said, "Order Abu Bakr to lead the people in prayer." `Aisha said, "Abu Bakr is a soft-hearted person. The Prophet (ﷺ) gave the same order again and she again gave the same reply. He again said, "Order Abu Bakr (to lead the prayer)! You are (like) the female companions of Joseph." Consequently Abu Bakr led the people in prayer in the life-time of the Prophet.

Sahih al-Bukhari Book 60, Hadith 59