And if it was not for the favor of Allah upon you, (4:113)

﴿وَلَوْلَا فَضْلُ اللَّهِ عَلَيْكَ وَرَحْمَتُهُ لَهَمَّت طَّائِفَةٌ مِّنْهُمْ أَن يُضِلُّوكَ وَمَا يُضِلُّونَ إِلَّا أَنفُسَهُمْ ۖ وَمَا يَضُرُّونَكَ مِن شَيْءٍ ۚ وَأَنزَلَ اللَّهُ عَلَيْكَ الْكِتَابَ وَالْحِكْمَةَ وَعَلَّمَكَ مَا لَمْ تَكُن تَعْلَمُ ۚ وَكَانَ فَضْلُ اللَّهِ عَلَيْكَ عَظِيمًا﴾
[ النساء: 113]

4:113 And if it was not for the favor of Allah upon you, [O Muhammad], and His mercy, a group of them would have determined to mislead you. But they do not mislead except themselves, and they will not harm you at all. And Allah has revealed to you the Book and wisdom and has taught you that which you did not know. And ever has the favor of Allah upon you been great.

If it were not for Allah’s grace in protecting you, O Messenger, a group of these people who deceive themselves would have tried to mislead you from the truth and you would have passed an unfair judgement.
In reality, they only mislead their own selves, because they will have to face the consequences of their crime of misleading others.
Allah has revealed the Qur'ān and Sunna to you and He has taught you guidance and light which you did not know before.
Allah’s grace on you, by giving you prophethood and protecting you, is great.

Had not the Grace of Allah and His Mercy been upon you (O Muhammad SAW), a party of them would certainly have made a decision to mislead you, but (in fact) they mislead none except their own selves, and no harm can they do to you in the least. Allah has sent down to you the Book (The Quran), and Al-Hikmah (Islamic laws, knowledge of legal and illegal things i.e. the Prophet's Sunnah - legal ways), and taught you that which you knew not. And Ever Great is the Grace of Allah unto you (O Muhammad SAW).

phonetic Transliteration

Walawla fadlu Allahi AAalayka warahmatuhu lahammat taifatun minhum an yudillooka wama yudilloona illa anfusahum wama yadurroonaka min shayin waanzala Allahu AAalayka alkitaba waalhikmata waAAallamaka ma lam takun taAAlamu wakana fadlu Allahi AAalayka AAatheeman

Abdullah Yusuf Ali - Translation

But for the Grace of Allah to thee and his Mercy, a party of them would certainly have plotted to lead thee astray. But (in fact) they will only Lead their own souls astray, and to thee they can do no harm in the least. For Allah hath sent down to thee the Book and wisdom and taught thee what thou Knewest not (before): And great is the Grace of Allah unto thee.

Safi-ur-Rahman al-Mubarakpuri

Had not the grace of Allah and His mercy been upon you, a party of them would certainly have made a decision to mislead you, but they mislead none except their own selves, and no harm can they do to you in the least. Allah has sent down to you the Book, and the Hikmah, and taught you that which you knew not. And ever great is the grace of Allah unto you.

Page 96 English transliteration