Narrated by as-Saduq in “Maanil akhbar” (p 162):

Translation:

My father – may Allah forgive him – Ali ibn Ibrahim – Muhammad ibn Eisa – Yunus ibn Abdurrahman – Hisham ibn Salim: I heard Abu Abdullah (alaihi salam) said: Allah wasn’t worshipped by anything more beloved to him than al-khab. I said: And what is al-Khab? Imam said: Taqiyyah.