Holding Fast to the Qur'an and Sunnah
كتاب الاعتصام بالكتاب والسنة
Read the English translation first, with the original Arabic directly underneath.
The sin of giving refuge or helping a person innovating an heresy
Narrated Sa`id bin Al-Musaiyab:
Abu Huraira said that Allah's Messenger (ﷺ) said, "I have been sent with 'Jawami-al-Kalim ' (the shortest expression with the widest meaning) and have been made victorious with awe (cast in my enemy's hearts), and while I was sleeping, I saw that the keys of the treasures of the world were placed in my hand." Abu Huraira added: Allah's Messenger (ﷺ) has gone, and you people are utilizing those treasures, or digging those treasures out." or said a similar sentence.
بُعِثْتُ بِجَوَامِعِ الْكَلِمِ، وَنُصِرْتُ بِالرُّعْبِ، وَبَيْنَا أَنَا نَائِمٌ رَأَيْتُنِي أُتِيتُ بِمَفَاتِيحِ خَزَائِنِ الأَرْضِ، فَوُضِعَتْ فِي يَدِي