Yasir Qadhi in series "dua weapon of believer " explains 2 types of dua.
The first being dua al ibadat. The second is dua al mas'ala دعاء المسألة.
Revelation has explicitly mentioned the best dua al ibadat " there is no deity worthy of worship but Allah"
My question is does " forgive me on the day when you resurrect me" qualifies as best dua al mas'ala?
. ‘Aishah (may Allah be pleased with her) said to the Prophet (SAWS), “Indeed, Ibn Jud’an used to provide food (for the people) and he would be hospitable to his guest[s]. Will any of that benefit him on the Day of Ressurrection?” The Prophet (SAWS) answered, “No. Indeed, on no day did he ever say: O my lord, forgive me my sin on the Day of Recompense.” (muslim)
My question has basis from another hadith which mentions about Allahs mercy.
"Follow the right course, seek nearness to Allah, and give glad tidings. Verily, none of you will enter Paradise by his deeds alone.” They said, “Not even you, O Messenger of Allah?” The Prophet said, “Not even me, unless Allah grants me his mercy. Know that the most beloved deed to Allah is that which is done regularly, even if it is small.” Source: Ṣaḥīḥ al-Bukhārī 6099, Ṣaḥīḥ Muslim 2818