Khosrow Swears the Oath Before the Flame

From B11.4, The Vow of Vengeance against Afrasiab. It illustrates B11.4.21–28:

B11.4.21
When Khosrow heard these words, both grave and clear,He faced the sacred flame in holy fear.
B11.4.22
And swore: “By God, the ruler over all,By day’s bright face and lapis night’s dark pall,
B11.4.23
By sun and moon, by throne and crown I swear,These royal signs attest the vow I bear;
B11.4.24
By royal seal and sword, by diadem,My oath is bound and witnessed here through them.
B11.4.25
No love for Afrasiab shall I embrace,Nor even in a dream behold his face.”
B11.4.26
In Pahlavi they wrote the oath by hand,With musk-water in the royal record grand.
B11.4.27
Then Zal and Rostam witnessed it that day,And all the chiefs bore witness in array.
B11.4.28
The written oath, as zanhar, signed and sealed,Was placed with Rostam, who would be its shield.