'Abdullah bin 'Umar (May Allah be pleased with them) reported:
My father 'Umar (May Allah be pleased with him) said: When (his daughter) Hafsah (May Allah be pleased with her) became a widow, I met 'Uthman bin 'Affan (May Allah be pleased with him) and offered Hafsah for marriage to him. 'Uthman said: "I shall think over the matter." I waited for a few days and then 'Uthman met me and said: "It occurred to me that I should not marry at present." Then I met Abu Bakr (May Allah be pleased with him) and said to him: "If you are willing, I shall marry my daughter Hafsah to you." Abu Bakr (May Allah be pleased with him) remained silent and did not utter any word to me in reply. I grew more angry with him than with 'Uthman. I had waited for only a few days when Messenger of Allah (ﷺ) asked for her hand in marriage and I married her to him. Thereafter, I met Abu Bakr (May Allah be pleased with him) who said, "Perhaps you were angry with me when you offered Hafsah to me and I said nothing in reply." I said, "Yes, that is so." He said, "Nothing stopped me to respond to your offer except that I knew that Messenger of Allah (ﷺ) had mentioned her and I could not disclose the secret of Messenger of Allah (ﷺ). Had Messenger of Allah (ﷺ) left her, I would have accepted her."[Al-Bukhari and Muslim].
App reference: Book 2, Hadith 6
Arabic/English book reference: Book 2, Hadith 686