Tantra Sāra 1.032

चक्रशङ्खवराभीति हस्तान्येतानि सर्वशः। मूलरूपसवर्णानि कृष्णवर्णा शिखोच्यते। चतुर्विंशन्मूर्तयश्च मूलरूपसवर्णकाः ॥३२॥

cakraśaṅkhavarābhīti hastānyētāni sarvaśaḥ। mūlarūpasavarṇāni kr̥ṣṇavarṇā śikhōcyatē। caturviṁśanmūrtayaśca mūlarūpasavarṇakāḥ ॥32॥

[चक्र शङ्ख वरा अभीति हस्तानि एतानि सर्वशः। मूलरूप सवर्णानि कृष्णवर्णा शिखोच्यते। चतुर्विंशति मूर्तयः च मूलरूप स्वर्णकाः॥
cakra = disk; śaṅkha = conch; varā = boon; abhīti = fearlessness; hastāni = in the hands; ētāni = these; sarvaśaḥ = all mighty;। mūlarūpa = the original form; savarṇāni = adorned with gold; kr̥ṣṇavarṇā = dark coloured; śikhōcyatē = crown above;। caturviṁśati = twenty four; mūrtayaḥ = forms; ca = and; mūlarūpa svarṇakāḥ = of the original form and colour;॥]

The all mighty is holding the disk, conch, boon sign, and not-to-fear sign in the (four) hands. This original form is dark, adorned with a crown on the head and gold ornaments. The twenty-four forms (representing the 24 letters of Gayatri mantra) are also similar to original form and colour.