Anas bin Malik (May Allah be pleased with him) reported:
After the death of Messenger of Allah ﷺ, Abu Bakr said to 'Umar (May Allah be pleased with them): "Let us visit Umm Aiman (May Allah be pleased with him) as Messenger of Allah ﷺ used to visit her." As we came to her, she wept. They (Abu Bakr and 'Umar (May Allah be pleased with them) said to her, "What makes you weep? Do you not know that what Allah has in store for His Messenger ﷺ is better than (this worldly life)?" She said, "I weep not because I am ignorant of the fact that what is in store for Messenger of Allah ﷺ (in the Hereafter) is better than this world, but I weep because the Revelation has ceased to come." This reply moved both of them to tears and they began to weep along with her.

[Muslim].

وعنه قال: قال أبو بكر لعمر، رضي الله عنهما، بعد وفاة رسول الله، ﷺ: انطلق بنا إلى أم أيمن ، رضي الله عنها، نزورها كما كان يزورها ، فلما انتهينا إليها بكت، فقالا: ما يبكيك؟ أما تعلمين أن ما عند الله تعالى خير لرسول الله، ﷺ قالت: إنى لا أبكي ، أني لا أعلم أن ما عند الله خير لرسول الله ﷺ ، ولكنى أبكي أن الوحي قد انقطع من السماء، فهيجتهما على البكاء، فجعلا يبكيان معها. ((رواه مسلم وقد سبق في باب زيارة أهل الخير)).