Ayesha reported,

Uthman reported that Abu Bakr sought permission to enter upon the Messenger of Allah ﷺ while he was lying on his bed wearing Ayesha's wrap. The Prophet ﷺ gave Abu Bakr permission to enter while he remained in that state, and Abu Bakr presented his need to him and then left. Then Umar sought permission, and the Prophet ﷺ permitted him to enter while still in the same state, and Umar presented his need to him and then left.Uthman said, "Then I sought permission to enter, and he sat up and said to Ayesha, 'Gather your clothes around you.' So I presented my need to him and then left."Ayesha said, "Messenger of Allah, why is it that I did not see you become concerned for Abu Bakr and Umar, may Allah be pleased with them, as you became concerned for Uthman?"The Messenger of Allah ﷺ replied, "Uthman is a modest man, and I feared that if I gave him permission to enter while I was in that state, he would not be able to convey his need to me."

عن عائشة زوج النبي ﷺ

وعثمان أن أبا بكر استأذن على رسول الله ﷺ، وهو مضطجع على فراشه لابس مرط عائشة، فأذن لأبي بكر وهو كذلك، فقضى إليه حاجته ثم انصرف، ثم استأذن عمر فأذن له وهو على تلك الحال، فقضى إليه حاجته، ثم انصرف. قال عثمان: ثم استأذنت عليه، فجلس وقال لعائشة: اجمعي عليك ثيابك. فقضيت إليه حاجتي ثم انصرفت فقالت عائشة: يا رسول الله ما لي لم أرك فزعت لأبي بكر وعمر رضى الله عنهما كما فزعت لعثمان؟ قال رسول الله ﷺ: إن عثمان رجل حيي وإنى خشيت إن أذنت له على تلك الحال أن لا يبلغ إلي في حاجته.