“I fell severely ill in Madiana and Abu ‘Abdillah (a.s.) had found out about it. He wrote to me, ‘Your ailment has come to our notice and you should buy one Sa’a (about 3 kg) of wheat, lie down on your back, pour it on your chest, as is done and say, “O Lord, I plead before You through Your name with which when a helpless person pleads before You, You remove his hardship, establish him on earth, and appoint him as Your deputy among Your creatures, bestow al-Salat (favors) upon Muhammad and his family, grant me good health and recovery from my ailment.” Then sit straight, collect the wheat around you and say what you just said and distribute it among the destitute a handful for each one and say what you just said (above supplication).’ “Dawud has said, ‘I followed his instruction and it was like I was freed from a rope with which I was tied up. Many people tried it and benefited thereby.’”