ENOfficial
Anas mentioned that a man said to the Prophet (ﷺ) ﷺ, ‘I really love this sūrah’. The Prophet (ﷺ) replied, ‘And your love for it will enable you to enter paradise’. Reference: Jami` at-Tirmidhi 2901.
Source: sunnah.com
Other translations
Arabic
عَنْ أَنَسٍ، أَنَّ رَجُلاً، قَالَ يَا رَسُولَ اللَّهِ إِنِّي أُحِبُّ هَذِهِ السُّورَةَ (قُلْ هُوَ اللَّهُ أَحَدٌ ) فَقَالَ " إِنَّ حُبَّكَ إِيَّاهَا يُدْخِلُكَ الْجَنَّةَ."
sunnah.com