Surah Ash-Shu'ara 26:54

إِنَّ هَـٰٓؤُلَآءِ لَشِرْذِمَةٌ قَلِيلُونَ

[And said], "Indeed, those are but a small band,

Translation: Saheeh International

Tafsir

‘Lo! these are but a small gang. It is said that they the Children of Israel numbered 670000 while his Pharaoh’s vanguard alone numbered 700000 and so he deemed their number insignificant in comparison to his huge army.

Excerpt from Tafsir al-Jalalayn, commentary on 26:54, via Quran.com. The reader has the full commentary and 9 more tafsirs.