Adding user without home directory

I have added a user without home directory. But still the task is failed.
Please check if i missed out any step.

[root@stapp01 tony]# useradd ammar -M

[root@stapp01 tony]# cat /etc/passwd

. . .

. . .


[root@stapp01 tony]# useradd -M ammar

useradd: user ‘ammar’ already exists

[root@stapp01 tony]# cd /home/ammar

bash: cd: /home/ammar: No such file or directory

[root@stapp01 tony]# ls /home

ansible tony