ذٰلِكَ بِاَنَّهُمۡ قَالُوۡا لِلَّذِيۡنَ كَرِهُوۡا مَا نَزَّلَ اللّٰهُ سَنُطِيۡعُكُمۡ فِيۡ بَعۡضِ الۡاَمۡرِۚ وَاللّٰهُ يَعۡلَمُ اِسۡرَارَهُمۡ‏

That is because they said to those who disliked what Allah sent down, "We will obey you in part of the matter." And Allah knows what they conceal