Hazrat Hilal bin Yusuf states that it is narrated from Isa (peace be upon him) that when any of you gives charity, he should do so with his right hand and keep it hidden even from his left hand. And when any of you is fasting, he should apply oil and wipe his lips with oil so that the onlookers do not assume that he is fasting. And when any of you prays at home, he should definitely set up a sutrah, because just as sustenance is distributed, so is praise.