الِاسْتِوَاءُ مَعْلُومٌ وَالْكَيْفُ مَجْهُولٌ وَالْإِيمَانُ بِهِ وَاجِبٌ وَالسُّؤَالُ عَنْهُ بِدْعَةٌ
Istiwaʾ is known, its modality unknown, belief in it obligatory, and asking about it an innovation.
These words are widely attributed to Imam Mālik, but the attribution is not accepted here as authentically established.
The sound underlying principle is to affirm Allah’s attributes without assigning to them creaturely modalities.