Azad said even the record-breaking cold has not been able to break the will power of the women protesters.
The crowd, singing Faiz Ahmed Faiz's Urdu poem 'Hum Dekhnege' before Azad's arrival, got charged as he reached the venue.
Holding the Constitution, he said, "I promise you that in next 10 days there will be at least 5,000 Shaheen Baghs across the country".
Azad said that earlier everyone had heard about Jallianwala Bagh, but now they were talking about Shaheen Bagh. "If you have the courage of sacrifice, then you have to sacrifice with holding your demonstration peacefully," he said.
"Till the Bhim Army is here, this law would not be applicable and they have to go through my corpse (to implement it)," Azad said.
"The court is saying that we should respect our Prime Minister. I do and and I will do because the constitution says this. But the Prime Minister also needs to respect the constitution of this country," he said.
The protesters hailed Azad and raised slogans in his support.
He said when he was in Tihar jail, he read the newspapers to know about the situation of women sitting on protest at Shaheen Bagh.
His visit to Shaheen Bagh comes a day after a Delhi court modified the conditions imposed on him while granting him bail. He was arrested last month for giving "inflammatory speeches" during an anti-CAA protest at Jama Masjid here.
The court allowed him to visit Delhi for medical reasons and election purposes. It also directed Azad to register his presence to the Station House Officer (SHO) of Fatehpur police station in Saharanpur, Uttar Pradesh, every Saturday for four weeks and on the last Saturday of every month.