ChU 1.2.8
एवं यथाश्मानम् आखणम् ऋत्वा विध्वंसत एवं हैव स विध्वंसते य एवंविदि पापं कामयते यश् चैनम् अभिदासति । स एषो ऽश्माखणः
evaṃ yathāśmānam ākhaṇam ṛtvā vidhvaṃsata evaṃ haiva sa vidhvaṃsate ya evaṃvidi pāpaṃ kāmayate yaś cainam abhidāsati | sa eṣo 'śmākhaṇaḥ
Devanagari rendered by HREEM from the edition's roman (IAST) text; the IAST is the edition's own.
Thus, as a ball of earth is scattered when hitting on a solid stone, will he be scattered who wishes evil to one who knows this, or who persecutes him; for he is a solid stone.
Translated by F. Max Müller