“Abu Ja’far (a.s.) has said that once an Arab man came to the Prophet (sw) and said, ‘Teach me a good deed whereby I can go to Paradise. He said, ‘Serve food and offer greetings of peace aloud.‘ He (the Imam) has said that the man then said, ‘I cannot afford this.‘ He (the Holy Prophet) asked, ‘Do you have a camel?‘ He replied, ‘Yes.‘ He then said, ‘Prepare your camel and provide water for a family who need water only every other day. This will not destroy your camel or damage your water container before your going to Paradise becomes necessary.‘“