Abu Amr Al-Awzaai said: I was told that it used to be said:

Woe to the Seekers of Fiqh for other than Worship and to those making lawful what is forbidden through doubts [and suspicions].


[1] Sunan Al-Daarimi # 187

قال الأوزاعي: أنبئت انه كان يقال: ويل للمتفقهين بغير العبادة والمستحلين للحرمات بالشبهات