In honor of Hajj being in this month, the Duaa of the Month will be one to day when you are beginning your Hajj. :)
Dua after taking Ghusl – Wearing Ehram
BISMILLAHI WABILLAHI ALLAHUMMAJALHU FII NURAN WATAHUZAN WAHUZAN WAAMNAN MIN KULLI KHWAFIN WASHIFAAN MIN KULLI DAAIN WASUQMIN. ALLAHUMMA TAHHIRNII WATAHII QALBII WASHRIHLII SADRII WAAJRI ALAA LISAANII MAHABBATAKA WAMIDHATAKA WASSANAAA ALAIKA FAINNAHU LAA QUWWATA LII ILLA BIKA WAQAD ALIMTU ANNAQIWAAMA DIINII ALTASLIIMU LAKA WALITTIBAAU LISUNNATI NABIYYIKA SALAWAATUKA ALAIHI WAALIHI.
I commence by the name of Allah and seek help from Him. O Allah render this ghusl an illumination for me and that it may purify me, protect me from all fears and be a cure for all ills. O Allah! Purify me and my heart, broaden my chest and that my tongue may utter words of love, adoration and praise for You as there is no strength for me but You and I know that my religion is submission to You and following the practices of Your prophet, may Your peace be on him.