Verily we perceive in our minds that which every one of us considers it too grave to express. He (the Holy Prophet) said: Do you really perceive it? They said: Yes. Upon this he remarked: That is the faith manifest. (Using translation from Muslim 132a)
جَاءَ نَاسٌ مِنْ أَصْحَابِ النَّبِيِّ ﷺ فَقَالُوا إِنَّا نَجِدُ فِي أَنْفُسِنَا مَا نَتَعَاظَمُ أَنْ نَتَكَلَّمَ بِهِ؟ قَالَ «قَدْ وَجَدْتُمُوهُ؟» قَالُوا نَعَمْ قَالَ «ذَلِكَ صَرِيحُ الْإِيمَانِ»