Sundarakānda - Canto 53

Wrapping up the tail of Hanumān in rags and soaking it in oil, and then lighting it up, the ogres, as urged by Rāvana, take Hanumān round the city to the accompaniment of beat of drums. Hearing this news from the lips of the ogresses, Sītā prays to the god of fire on oath to see that Hanumān remains unscathed. Climbing up the gate and shedding the fire by attenuating his body, and then resuming vast proportions and seizing the iron bar of the gate, Hanumān kills with it the ogres guarding the gate.