Marmaduke Pickthall, The Meaning of The Glorious Koran. An Explanatory Translation (1930)
Al-Kauthar takes its name from a word in the first verse. The disbelievers used to taunt the Prophet with the fact that he had no son, and therefore none to uphold his religion after him.
1. Lo! We have given th.ee Abundance;
2. So pray unto thy Lord, and sacrifice.
3. Lo! it is thy insulter (and not thou) who is without posterity.