diff --git a/modules/identity/src/Volo.Abp.Identity.Domain/Volo/Abp/Identity/IIdentityUserRepository.cs b/modules/identity/src/Volo.Abp.Identity.Domain/Volo/Abp/Identity/IIdentityUserRepository.cs
index 164d9a1c32..9729d03129 100644
--- a/modules/identity/src/Volo.Abp.Identity.Domain/Volo/Abp/Identity/IIdentityUserRepository.cs
+++ b/modules/identity/src/Volo.Abp.Identity.Domain/Volo/Abp/Identity/IIdentityUserRepository.cs
@@ -102,4 +102,11 @@ public interface IIdentityUserRepository : IBasicRepository<IdentityUser, Guid>
         bool? notActive = null,
         CancellationToken cancellationToken = default
     );
+
+    Task<IdentityUser> FindByTenantIdAndUserNameAsync(
+        [NotNull] string userName,
+        Guid? tenantId,
+        bool includeDetails = true,
+        CancellationToken cancellationToken = default
+    );
 }
diff --git a/modules/identity/src/Volo.Abp.Identity.EntityFrameworkCore/Volo/Abp/Identity/EntityFrameworkCore/EfCoreIdentityUserRepository.cs b/modules/identity/src/Volo.Abp.Identity.EntityFrameworkCore/Volo/Abp/Identity/EntityFrameworkCore/EfCoreIdentityUserRepository.cs
index 0b8efc4af5..ab9cc892d6 100644
--- a/modules/identity/src/Volo.Abp.Identity.EntityFrameworkCore/Volo/Abp/Identity/EntityFrameworkCore/EfCoreIdentityUserRepository.cs
+++ b/modules/identity/src/Volo.Abp.Identity.EntityFrameworkCore/Volo/Abp/Identity/EntityFrameworkCore/EfCoreIdentityUserRepository.cs
@@ -5,6 +5,7 @@ using System.Linq.Dynamic.Core;
 using System.Security.Claims;
 using System.Threading;
 using System.Threading.Tasks;
+using JetBrains.Annotations;
 using Microsoft.EntityFrameworkCore;
 using Volo.Abp.Domain.Repositories.EntityFrameworkCore;
 using Volo.Abp.EntityFrameworkCore;
@@ -301,4 +302,18 @@ public class EfCoreIdentityUserRepository : EfCoreRepository<IIdentityDbContext,
     {
         return (await GetQueryableAsync()).IncludeDetails();
     }
+
+    public virtual async Task<IdentityUser> FindByTenantIdAndUserNameAsync(
+        [NotNull] string userName,
+        Guid? tenantId, 
+        bool includeDetails = true,
+        CancellationToken cancellationToken = default)
+    {
+        return await(await GetDbSetAsync())
+            .IncludeDetails(includeDetails)
+            .FirstOrDefaultAsync(
+                u => u.TenantId == tenantId && u.UserName == userName,
+                GetCancellationToken(cancellationToken)
+            );
+    }
 }
diff --git a/modules/identity/src/Volo.Abp.Identity.MongoDB/Volo/Abp/Identity/MongoDB/MongoIdentityUserRepository.cs b/modules/identity/src/Volo.Abp.Identity.MongoDB/Volo/Abp/Identity/MongoDB/MongoIdentityUserRepository.cs
index 2edcff0388..71d0d2eb53 100644
--- a/modules/identity/src/Volo.Abp.Identity.MongoDB/Volo/Abp/Identity/MongoDB/MongoIdentityUserRepository.cs
+++ b/modules/identity/src/Volo.Abp.Identity.MongoDB/Volo/Abp/Identity/MongoDB/MongoIdentityUserRepository.cs
@@ -5,6 +5,7 @@ using System.Linq.Dynamic.Core;
 using System.Security.Claims;
 using System.Threading;
 using System.Threading.Tasks;
+using JetBrains.Annotations;
 using MongoDB.Driver;
 using MongoDB.Driver.Linq;
 using Volo.Abp.Domain.Repositories.MongoDB;
@@ -269,4 +270,17 @@ public class MongoIdentityUserRepository : MongoDbRepository<IAbpIdentityMongoDb
                  .Where(u => u.OrganizationUnits.Any(uou => organizationUnitIds.Contains(uou.OrganizationUnitId)))
                  .ToListAsync(cancellationToken);
     }
+
+    public virtual async Task<IdentityUser> FindByTenantIdAndUserNameAsync(
+        [NotNull] string userName, 
+        Guid? tenantId, 
+        bool includeDetails = true, 
+        CancellationToken cancellationToken = default)
+    {
+        return await (await GetMongoQueryableAsync(cancellationToken))
+            .FirstOrDefaultAsync(
+                u => u.TenantId == tenantId && u.UserName == userName,
+                GetCancellationToken(cancellationToken)
+            );
+    }
 }