Al-Kawthar

And from his narration on the authority of Ibn 'Abbas that he said about the interpretation of Allah's saying (Lo! We have given thee Abundance): '(Lo! We have given thee Abundance) He says: We have given you, O Muhammad, abundant good and included in this abundant good is the Qur'an; it is also said that Abundance (al-Kawthar) refers to a river in Paradise which was given to Muhammad (pbuh);

(So pray unto thy Lord) in gratitude for that, (and sacrifice) face towards the Qiblah when immolating your sacrifice; it is also said this means: put your right hand on the left hand when in prayer; and it is also said this means: complete your bowing and prostration such that your upper part of the chest is plain; and it is also said that this means: pray to your Lord on the day of immolation and offer a sacrifice.

(Lo! It is thy insulter) the one who despises you ((and not thou) who is without posterity) he will be without family, children, wealth or any goodness; he will not be mentioned after his death, i.e. al-'As Ibn Wa'il al-Sahmi, while you will be mentioned with every good. This is because, when his son 'Abdullah died, they said: �Muhammad (pbuh) is without posterity�.'