Mufti e azam Pakistan Mufti Mohammad Shafi’i ra khalifa of Hazrat Hakeeul Ummat ra said;
“There are numerous minor (sagerah) sins.
All actions performed against the Sunnah method are minor (sagerah) sins.
For example, one drinks water without reciting ‘bismillah’, this is a minor sin. Also, if one eats or drinks using the left hand, this is a minor sin.”
Majalis Mufti-e-azam Albalagh J1,1410 pg 294