TgJ Mal1:6 :וְאִם כְאָב אֲנָא אָן דְאַתוּן מְיַקְרִין קְֹדָמַי‏ : if I am like a father, where is it that you honor me [MT אַיֵּה כְבוֹדִי]
See the entire entry for ˀān, hān adv./conj. where, wherever