We read in Fath al-Mueen by Hassan Saqqaf, page 76:
“Sheikh ibn Taimiyah lived for more than 70 years and he neither got married nor performed the Hajj”
We read in Sunnan ibn Majah, Volume 1 page 592:
Ayesha narrated that Allah’s messenger said: Marriage is my Sunnah, whoever didn’t perform my Sunnah he doesn’t belong to me’
Imam of the Salafis Albani declared it Sahih in Silsila Sahiha, Volume 5 page 382.
Sunan al-Daremi, Volume 2 page 28:
Abi Umama narrated that Allah’s Messenger said: ‘Whoever, not being forbidden from performing Hajj for an acceptable reason or unjust ruler or severe illness, died without performing Hajj, he shall die as Jew or Christian.’
Shawkani said: ‘Hasan le Ghayrhu’ (Nail al-Awtar, v5 p8).