Musnad Ahmed: Hadith 4310

The Prophet (ﷺ) entered the mosque (walking) between Abu Bakr and ‘Umar, and saw Ibn Mas'ood praying. He was reciting (Soorat) an-Nisa' and stopped when he completed one hundred verses, then Ibn Mas'ood started to offer supplication whilst standing in prayer. And the Prophet (ﷺ) said: “Ask you will be given, ask you will be given." Then he said: “Whoever would like to recite the Qur'an fresh as it was revealed, let him recite it according to the recitation of Ibn Umm ‘Abd." The next morning, Abu Bakr came to him to tell him the good news and he said to him: What did you ask Allah for yesterday? He said: I said: O Allah, I ask You for faith that will never change, blessing that will never expire and to accompany Your Prophet Muhammad (ﷺ) in the highest part of the Paradise of eternity. Then 'Umar (رضي الله عنه) came to Abdullah (to tell him the good news), but it was said to him: Abu Bakr has beaten you to it, so he said: May Allah have mercy on Abu Bakr. I never competed with him in doing good but he beat me to it.