﴿ قُلْ هُوَ ٱلَّذِىٓ أَنشَأَكُمْ وَجَعَلَ لَكُمُ ٱلسَّمْعَ وَٱلْأَبْصَٰرَ وَٱلْأَفْـِٔدَةَ ۖ قَلِيلًۭا مَّا تَشْكُرُونَ ﴾

“SAY: "[God is] He who has brought you [all] into being, and has endowed you with hearing, and sight, and hearts: [yet] how seldom are you grateful!"”

Say ‘It is He Who created you and endowed you with hearing and sight and hearts. Little do you thank!’ mā tashkurūna mā is extra; the sentence itself is a new independent one informing of how extremely little they give thanks for these graces.