Ref: Al Hisnul Hiseen, page 25.
Ref: Siyar al A'lam wa al Nubalah, volume 12, page 469.
Ref: Ahmad bin Hambal with a sound chain of transmission in his Musnad, volume 17, page42-43, hadith number 23476.
Ref: Tuhfat uth-Dhakireen, page 37.
Ref: Tuhfah al-Dhakireen, page 137.
Ref: Tuhfah al-Dhakireen, page 138.
Ref: Shifa’-ul-fu’ad bi-ziyarat khayr--il-‘ibad, page 153.
Ref: Ibn Kathir, Tafsir-ul-Qur'an al-azim, volume 4, page 140, under the Verse 4:64.
Ref: al-Musannaf Ibn Abi Shaybah, volume 11, page 118, hadith 32538.
Ref: Tafsir Ruh ul Ma’ani, volume 30, page 24.
Ref: Ibn al-Haaj, al-Madkhal, volume 2, page 139, al-Madkhal, Imam Abu Abdullah Ibn al-Haaj al-Maliki, Publish: Dar al-Turath, Qahira.
Ref: at-Tawassul, anwa‘uhu wa ahkamuhu - Nasir Albani, Publish: Maqtaba al-Nashar, Riyahd/Saudia Version 2001, page 68.
Imam Ibn Hajr Asqalani proving Yahyah Bin Yahya research said this proves Imam Ibn Hajr and Imam Hakim (rah) Belief (aqida) that going to tombs of Awliyas and asking through their Intercession is allowed. Ibn Hajr (rah) Writes: Imam Hakim (rah) said that he heard Abu Ali Nishapori that he said that I was in extreme depression that I saw Prophet (Peace Be Upon Him) in my dream he said that go to grave of Yahya bin Yahya (rah) and do Istaghfar and ask for help through his Intercession your problem will be solved. Abu Ali Nishapori said I did like that and my problem was solved in the morning.
Ibn Hibban (rah) relates his own account of going to Al-Ridha’s (rah) grave, performing Tawassul through him and states that whenever “I was afflicted with a problem during my stay in Tus, I would visit the grave of Ali bin Musa (Allah (SWT)’s blessings be upon his grandfather and him) and ask Allah (SWT) to relieve me of that problem and it (my dua) would be answered and the problem alleviated. And this is something I did, and found to work, many times …”