so I want to know will salatul ishraq and umrah in Ramadan also guarantees paradise or heaven? Al-Bukhari (1782) and Muslim (1256) narrated that Ibn Abbaas said: The Messenger of Allaah (peace and blessings of Allah be upon him) said to a woman from among the Ansaar – Ibn Abbaas mentioned her name but I forgot it – “What kept you from performing Hajj with us?” She said: We only have two camels and the father of her son and her son had gone for Hajj on one camel, and he left us the other camel so that we could carry water on it. He said: “When Ramadan comes, go for Umrah, for Umrah in (that month) is equivalent to Hajj.”
Saaiduna Anas Bin Malik Radiallahu Anhu narrates that the Prophet of Allah Sallallahu Alahi Wasalam said “Whosoever offers his fajr prayer in congregation, then remains seated making zikr of Allah until the sun rises and thereafter offers two rakats, they will receive the reward of performing a Hajj and Umrah”. (Sunan Tirmizi) salatul ishraq I don't think they will replace the duty of fard hajj but I want do they guarantee heaven like hajj does.