ENOfficial
Ibn ‘Abbas reported the Prophet (ﷺ) as saying, “This and that are equal,” meaning the little finger and the thumb. Bukhari transmitted it.
Source: sunnah.com
Other translations
Arabic
عَنِ ابْنِ عَبَّاسٍ عَنِ النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ: «هَذِهِ وَهَذِهِ سَوَاءٌ» يَعْنِي الخِنصرُ والإبهامَ. رَوَاهُ البُخَارِيّ
sunnah.com