and do not imagine that he ﷺ forbids anything unless it carries harm and evil, nor does he command anything except what contains benefit and righteousness. Hence, whoever fails to abstain from what the Messenger of Allah ﷺ has prohibited is not truly bearing witness to his messengership; rather, he contradicts himself. How can someone testify that he is the Messenger of Allah yet not avoid what the Messenger ﷺ has forbidden? Allah, exalted is He, says: “So take whatever the Messenger gives you, and refrain from whatever he forbids you” (al-Hashr 59:7). The Prophet ﷺ said: “When I forbid you from something, keep away from it; and when I command you to do something, do of it as much as you can.” Therefore, it is essential to shun whatever he ﷺ has prohibited.
Fourth: Allah is to be worshiped only through what He has legislated. Confine your acts of worship to what Allah prescribed for His Messenger ﷺ; do not introduce a devotional act that the Messenger ﷺ did not legislate, even if your intention is good and you seek reward. Such a deed is invalid because the Messenger ﷺ did not bring it. Good intention alone is not enough; conformity is required.
Acts of worship are divinely regulated, and it is impermissible to practice any act of worship that the Messenger ﷺ did not legislate. The Messenger of Allah ﷺ said: “Whoever performs an action that is not…"