"When Fatima fell sick Abu Bakr al-Siddiq came and asked permission to see her. `Ali said: "Fatima, here is Abu Bakr al-Siddiq asking permission to see you." She said: "Would you like me to give him permission?" He said yes, whereupon she gave him permission. He entered to see her, seeking her good pleasure, and said: "By Allah! I did not leave my house, property, family, and tribe except to please Allah, and to please His Prophet, and to please you, the People of the House (ahl al-bayt)! He continued to seek her good pleasure until she was pleased."
1 Al-Dhahabi said in the Siyar (al-Arna'ut ed. 2:121): "She applied the Sunna by not giving permission to anyone to enter her husband's house except by his command."
2 Narrated from `Amir al-Sha`bi by al-Bayhaqi in al-Sunan al-Kubra (6:300-301) and Dala'il al-Nubuwwa (7:273-281) who said: "It is [narrated with] a fair (hasan) chain that is missing the Successor-link (mursal) and is [otherwise] sound (sahîh)." Ibn Hajar in Fath al-Bari (1959 ed. 6:202) said: "Even if it is mursal, its chain is sound (sahîh) to al-Sha`bi. Ibn Kathir in al-Bidaya wa al-Nihaya (Turath ed. 5:310=Ma`arif ed. 5:289) said: "This chain is good and strong, and it seems that `Amir al-Sha`bi heard it from `Ali or from someone who heard it from `Ali." Muhibb al-Din al-Tabari cited it in al-Riyad al-Nadira (2:96-97 #534) and al-Dhahabi in the Siyar (al-Arna'ut ed. 2:121).