It is narrated in Anwaar jazairi that once during an acute famine a preacher was speaking from the pulpit in a mosque. He said, " If someone wants to give sadaqa, seventy satans cling to his hand and try to prevent him from doing the good turn." One momin who was seated very near the foot of the pulpit told to his friends with surprise, " What has Satan to do with sadaqa? I have some wheat at home. I shall go home just now and bring it to the mosque to give away in charity. I shall see how the satans prevent me from doing it!" The man got up and went home. On reaching home, when his wife became aware of his intention, she shouted at him, " In these days of acute famine you have no care of your wife and children! Perhaps the famine conditions might prolong and we might all die of starvation because of shortage of wheat." Therefore, getting engulfed with doubts the momin returned to the mosque empty handed.

The friends asked him, " What has happened. You have returned from home without the wheat? Alas! The seventy satans had clung to your hands and prevented you from doing the sadaqa." The man said, " I didn't see the satans, but definitely I have seen their mother who came in the way of my doing the good deed!"

This proves that man tries to take cudgels with Satan but many a time his wife or others distract him from the good turn.

Sadaqa is also not giving a few coins reluctantly because:

Lun tanalu al birra hatta tunfequ mimma tuhibboon

Never shall ye attain to righteousness until ye give away ( in the way of your Lord)-Ale Imran-92

What is your financial position? If you are really affluent, Satan's backbone will not break unless you do a sizeable charity. There will be another condition attached to your charity that you should not brag about it to the beneficiary nor to other friends. Belittling the person who has received your help by reminding of your good deed can render your sadaqa null and void.