Praise be to Allah,
Sahl ibn Yoosuf narrated to us from Humayd [at-Taweel] from Anas ibn Maalik who said,
“A man peeped through a crack [in the wall] into [one of the dwellings of] the Prophet (PBUH) and the Prophet (PBUH) aimed an arrowhead at him, and the man withdrew his head.”
(Musnad Ahmad, Vol. 3, p. 178. The isnaad of this hadeeth is Saheeh according to the conditions set by al Bukhaaree.)
Source:
Thulaathiyyaat Musnad Ahmad ibn Hanbal (may Allah have mercy on him)
Reports of Imaam Ahmad that have only three narrators between him and the Prophet, peace, and blessings be upon him.
Shaykh Muhammad ibn Ahmad ibn Saalim as–Saffaareenee al–Hanbalee ~(1114 –1188 AH)