1. A number of our people have narrated from Ahmad ibn Muhammad from Ibn Abi ‘Umayr from those narrated to him who has said the following: “Abu ‘Abd Allah , has said, ‘If the location of one of you is far away and your home is at a distant place, you then should climb on the roof of your house. You should perform two Rak‘at salat (prayer) and then turn, for offering your greeting of peace, to our graves; we receive such offering of greeting of peace.’”