Hawzah News Agency – The merciful prophet of Islam (pbuh) says:

مَنْ لم يُغفَرْ لَهُ في شَهرِ رمضانَ ففِي أيِّ شهرٍ يُغفَرُ لَهُ ؟!

'If a person remains unforgiven in the month of Ramadan, then what other month is there left for him to be forgiven in?!'

Source: Amali al-Saduq, p. 52, no. 2