*One should not choose rhyming phrases when making Du'aa.
*One should ask Allah with an appropriate name suitable to what he is asking for; i.e. one should say: O Raheem (i.e. the All-Merciful) forgive me.
*One should not ask Allah to limit His mercy to a few individuals. Abu Hurairah () said: 'The Messenger of Allah () got up to perform the prayers and we stood up to pray as well. A Bedouin then said: 'O Allah have mercy on Muhammad and I and don't have mercy on anyone else!' When the Prophet () completed the prayer he said to the Bedouin:
