Hadith: He did not ever say: My Lord, forgive my sins on the Day of Judgment

عَنْ عَائِشَةَ قَالَتْ: قُلْتُ: يَا رَسُولَ اللهِ، ابْنُ جُدْعَانَ كَانَ فِي الْجَاهِلِيَّةِ يَصِلُ الرَّحِمَ، وَيُطْعِمُ الْمِسْكِينَ، فَهَلْ ذَاكَ نَافِعُهُ؟ قَالَ: "لَا يَنْفَعُهُ، إِنَّهُ لَمْ يَقُلْ يَوْمًا: رَبِّ اغْفِرْ لِي خَطِيئَتِي يَوْمَ الدِّينِ".
[صحيح] - [رواه مسلم]

‘Ā’ishah (may Allah be pleased with her) reported: I said: "O Messenger of Allah, Ibn Jud‘ān used to uphold kinship ties and feed the poor during the Jāhiliyyah (pre-Islamic era of ignorance). Will this benefit him?" He said: "It will not benefit him, for he did not ever say: My Lord, forgive my sins on the Day of Judgment."
Sahih/Authentic. - [Muslim]

Explanation

‘Ā’ishah (may Allah be pleased with her) said to the Prophet (may Allah’s peace and blessings be upon him) that ‘Abdullāh ibn Jud‘ān at-Taymi used to do good deeds during the Jāhiliyyah, upholding kinship ties and feeding the poor, and asked whether these things would save him from the punishment of Allah which disbelievers deserve. He replied in the negative and explained that these would not benefit him because he was a follower of the religion of the Quraysh polytheists and did not believe in the Resurrection, which made him a disbeliever and rendered his good deeds worthless. That is because he did not believe or express his belief with phrases like: My Lord, forgive my sins on the Day of Judgment.