Does looking behind one during circumambulation (tawaf) invalidate the tawaf and necessitate repeating it from the beginning?

Merely looking back or turning the face during circumambulation (Tawaf (definition)) does not invalidate it. However, the circumambulator should focus on supplication and seeking forgiveness, and lower their gaze. Caution must be exercised to avoid having the Kaaba to one's right, in front, or behind while walking during Tawaf, as this would invalidate the round. This is because having the House to the left of the circumambulator is one of the conditions and obligations of Tawaf.