و الايمان قول باللّسان و تصديق بالجنان و عمل بالاركان، - Al-Ghazali

ويجب علي كل مَن لا يقف على كنه هذه المعاني وحقيقتها ولم يعرف تأويلها والمعني المراد به أن يقر بالعجز، فإن التصديق واجب وهو عن دركه عاجز فإن ادعى المعرفة فقد كذب.

if man’s love for himself be necessary, then his love for Him through whom, first his coming-to-be, and second, his continuance in his essential being with all his inward and outward traits, his substance and his accidents, occur must also be necessary. Whoever is so besotted by his fleshy appetites as to lack this love neglects his Lord and Creator. He possesses no authentic knowledge of Him; his gaze is limited to his cravings and to things of sense.

Ukhuwah itu bukan pada indahnya pertemuan, tapi pada ingatan seseorang terhadap saudaranya di dalam doanya.