Prior to discussing the main issue...
Prior to discussing the main issue, it would be useful to first review traditions of Masomeen -asws about the factors leading to serious illness and hence are the precusors to those conditions under which one requires to consider blood transfusion\/organ transplantation: \n \u0623\u0628\u064a \u0631\u062d\u0645\u0647 \u0627\u0644\u0644\u0647 \u0642\u0627\u0644 \u062d\u062f\u062b\u0646\u0627 \u0633\u0639\u062f \u0628\u0646 \u0639\u0628\u062f \u0627\u0644\u0644\u0647 \u0639\u0646 \u0623\u062d\u0645\u062f \u0628\u0646 \u0623\u0628\u064a \u0639\u0628\u062f \u0627\u0644\u0644\u0647 \u0627\u0644\u0628\u0631\u0642\u064a \u0628\u0625\u0633\u0646\u0627\u062f\u0647 \u064a\u0631\u0641\u0639\u0647 \u0625\u0644\u0649 \u0623\u0628\u064a \u0639\u0628\u062f \u0627\u0644\u0644\u0647 \u0639 \u0642\u0627\u0644 \u0643\u0627\u0646 \u064a\u0633\u0645\u0649 \u0627\u0644\u0637\u0628\u064a\u0628 \u0627\u0644\u0645\u0639\u0627\u0644\u062c \u0641\u0642\u0627\u0644 \u0645\u0648\u0633\u0649 \u0628\u0646 \u0639\u0645\u0631\u0627\u0646 \u064a\u0627 \u0631\u0628 \u0645\u0645\u0646 \u0627\u0644\u062f\u0627\u0621 \u0642\u0627\u0644 \u0645\u0646\u064a \u0642\u0627\u0644 \u0645\u0645\u0646 \u0627\u0644\u062f\u0648\u0627\u0621 \u0642\u0627\u0644 \u0645\u0646\u064a \u0642\u0627\u0644 \u0641\u0645\u0627 \u064a\u0635\u0646\u0639 \u0627\u0644\u0646\u0627\u0633 \u0628\u0627\u0644\u0645\u0639\u0627\u0644\u062c \u0642\u0627\u0644 \u064a\u0637\u064a\u0628 \u0628\u0630\u0644\u0643 \u0623\u0646\u0641\u0633\u0647\u0645 \u0641\u0633\u0645\u064a \u0627\u0644\u0637\u0628\u064a\u0628 \u0644\u0630\u0644\u0643 \n My father told me that he heard it from Saad bin Abdullah, who from Ahmed bin Abi Abdullah Barqi, who from a number of narrators referred to Imam Jafar-e-Sadiq -asws : \n During the time of earlier generations, a \u2018Tabeeb\u2019 (doctor) would be called \u2018Muallag\u2019 (reliever).\u00a0 Hazrat Musa bin Imran -as prayed to Allah -azwj : \u2018O My Lord!
Please enlighten me from where does the disease orginate? Allah -azwj replied:\u00a0 \u2018It comes from Me\u2019.\u00a0 Hazrat Musa -as then asked: \u2018From where comes its treatment\u2019?\u00a0 Allah -azwj replied: \u2018From Me -azwj \u2019.\u00a0 Hazrat Musa -as asked: \u2018Then why people go to a \u2018 Muallag\u2019 (doctor)\u2019?\u00a0 Allah -azwj replied: \u2018To get comfort and peace of mind\u2019.\u00a0 That is why a doctor is called \u2018Muallag\u2019 the reliever of anxiety and provider of comfort to the sufferer.