Hadith.2690 - In the narration of Zurara from Abu Ja'far (as): "Whoever does that (trims nails) out of forgetfulness, inattentiveness, or ignorance, there is nothing upon them (no penalty)."
Man Lā Yaḥḍuruh al-Faqīh #1001"Whoever does this deliberately has invalidated his prayer and must repeat it. However, if he does so out of forgetfulness, inattentiveness,...
Al-Kāfi #1246“Abu Ja‘far (a.s.), has said, ‘If one in the state of Ihram wears a cloth which he is not supposed to wear and one does it out of...
Man Lā Yaḥḍuruh al-Faqīh #1095"Whoever intentionally eats saffron or food containing fragrance while in Ihram must offer a blood sacrifice (dam). However, if he does so...