At-Tawbah 9:74

Yahlifoona billahi maqaloo walaqad qaloo kalimata alkufri wakafaroobaAAda islamihim wahammoo bima lam yanaloowama naqamoo illa an aghnahumu Allahuwarasooluhu min fadlihi fa-in yatooboo yaku khayran lahumwa-in yatawallaw yuAAaththibhumu Allahu AAathabanaleeman fee addunya wal-akhiratiwama lahum fee al-ardi min waliyyin wala naseer

They swear by Allāh that they did not say [anything against the Prophet (ﷺ)] while they had said the word of disbelief and disbelieved after their [pretense of] Islām and planned that which they were not to attain. And they were not resentful except [for the fact] that Allāh and His Messenger had enriched them of His bounty. So if they repent, it is better for them; but if they turn away, Allāh will punish them with a painful punishment in this world and the Hereafter. And there will not be for them on earth any protector or helper.

They swear by Allah that they said nothing, while indeed, they had said the word of infidelity and had disbelieved after having accepted Islam, and had intended what they could not achieve. And they have reacted for nothing but that Allah and His Messenger have enriched them with His grace.So, if they repent, it will be good for them, and if they turn away, Allah will chastise them with a painful punishment in this world and the Hereafter, and for them there is neither a friend on the Earth, nor a helper.