Taa-Haa • BN-TAFSEER-IBN-E-KASEER
﴿ قَالَ فَمَن رَّبُّكُمَا يَٰمُوسَىٰ ﴾
“[But when God's message was conveyed unto Pharaoh,] he said: "Who, now, is this Sustainer of you two, O Moses?"”
Please check ayah 20:52 for complete tafsir.