Surah Yusuf 12:55
قَالَ ٱجْعَلْنِى عَلَىٰ خَزَآئِنِ ٱلْأَرْضِ ۖ إِنِّى حَفِيظٌ عَلِيمٌ
[Joseph] said, "Appoint me over the storehouses of the land. Indeed, I will be a knowing guardian."
Translation: Saheeh International
Tafsir
He Joseph said ‘Place me in charge of the storehouses of the land the land of Egypt. I am indeed a skilled custodian’ one worthy of custodianship thereof and knowledgeable in such affairs — it is also said that he meant I am indeed a competent scribe and accountant.
Excerpt from Tafsir al-Jalalayn, commentary on 12:55, via Quran.com. The reader has the full commentary and 9 more tafsirs.