Atharvaveda book 20 Hymn 127 verses 1-13 are:
Mantra 1
He is Narashansah or the praised one (Muhammad). He is Kaurama: the prince of peace or the emigrant, who is safe, even amongst a host of 60,090 enemies.
Mantra 2
He is a camel-riding Rishi, whose chariot touches the heaven.
Mantra 3
He is Mamah Rishi who is given a hundred gold coins, ten chaplets (necklaces), three hundred good steeds and ten thousand cows.
Mantra 4
Vachyesv rebh. ‘Oh! ye who glorifies’.
The Sanskrit word Narashansah means ‘the praised one’, which is the literal translation of the Arabic word Muhammad (pbuh).
The Sanskrit word Kaurama means ‘one who spreads and promotes peace’. The holy Prophet was the ‘Prince of Peace’ and he preached equality of human kind and universal brotherhood. Kaurama also means an emigrant. The Prophet migrated from Makkah to Madinah and was thus also an Emigrant.
He will be protected from 60,090 enemies, which was the population of Makkah. The Prophet would ride a camel. This clearly indicates that it cannot be an Indian Rishi, since it is forbidden for a Brahman to ride a camel according to the Sacred Books of the East, volume 25, Laws of Manu pg. 472. According to Manu Smirti chapter 11 verse 202, "A Brahman is prohibited from riding a camel or an ass and to bathe naked. He should purify himself by suppressing his breath".
This mantra gave the Rishi's name as Mamah. No rishi in India or another Prophet had this name Mamah which is derived from Mah which means to esteem highly, or to revere, to exalt, etc. Some Sanskrit books give the Prophet’s name as ‘Mohammad’, but this word according to Sanskrit grammar can also be used in the bad sense. It is incorrect to apply grammar to an Arabic word. Actually shas the same meaning and somewhat similar pronunciation as the word Muhammad (pbuh).
He is given 100 gold coins, which refers to the believers and the earlier companions of the Prophet during his turbulent Makkan life. Later on due to persecution they migrated from Makkah to Abysinia. Later when Prophet migrated to Madinah all of them joined him in Madinah.
The 10 chaplets or necklaces were the 10 best companions of the Holy Prophet (pbuh) known as Ashra-Mubbashshira (10 bestowed with good news). These were foretold in this world of their salvation in the hereafter i.e. they were given the good news of entering paradise by the Prophet’s own lips and after naming each one he said "in Paradise". They were Abu Bakr, Umar, Uthman, Ali, Talha, Zubair, Abdur Rahman Ibn Auf, Saad bin Abi Waqqas, Saad bin Zaid and Abu Ubaidah (May Allah be well-pleased with all of them).
The Sanskrit word Go is derived from Gaw which means ‘to go to war’. A cow is also called Go and is a symbol of war as well as peace. The 10,000 cows refer to the 10,000 companions who accompanied the Prophet (pbuh) when he entered Makkah during Fateh Makkah which was a unique victory in the history of mankind in which there was no blood shed. The 10,000 companions were pious and compassionate like cows and were at the same time strong and fierce and are described in the Holy Quran in Surah Fatah:
"Muhammad is the Messenger of Allah; and those who are with him are strong against unbelievers, (but) compassionate amongst each other."
[Al-Qur'an 48:29]
This mantra calls the Prophet as Rebh which means one who praises, which when translated into Arabic is Ahmed, which is another name for the Holy Prophet (pbuh).