Avnei Nezer Even Haezer 288: Shlichus For Dvar Aveira When Two Aveiros Are Involved
Shlichus Li-dvar Aveirah For Dalet Vi-hey
Shlichus Li-dvar Aveirah And אי עביד לא מהני
Kaveid Lev Paroh - Straightening Out The Heart/ Tanna D'bei Eliyahu - Moshe And Rachav
Sefer Hamitzvos Lo Taaseh 117: Issur Nosar
Pesachim 24b: Is One Yotzei Mitzvos Achila When He Eats Shelo Ki-derech?